US Patent 11112640 Optical member

Patent 11112640 was granted and assigned to Nitto Denko on September, 2021 by the United States Patent and Trademark Office.

Overview Structured Data Issues Contributors Activity

Is a

Patent

Patent attributes

Patent Applicant

Nitto Denko

Current Assignee

Nitto Denko

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

111126400

Patent Inventor Names

Kozo Nakamura0

Date of Patent

September 7, 2021

Patent Application Number

201810160

Date Filed

October 16, 2018

Patent abstract

There is provided an optical member capable of achieving a liquid crystal display apparatus that is thin and has extremely high brightness. An optical member of the present invention includes: a first member having a function of converting direction of light; and a second member laminated on the first member via an adhesion layer. The adhesion layer has void portions, and non-contact portions are defined at an interface between the adhesion layer and the first member and/or the second member, and the adhesion layer is brought into contact with each of the first member and the second member in four corner portions of the optical member in plan view.